01 · one order, end to end
Counter to close, no shouting.
The café ran on a notebook, a cash drawer, and shouted tickets. Crema is one tap to ring, a screen in the kitchen, cash that reconciles, a receipt, and a table that frees itself.
- 01RingA walk-up, or a tab opened on a table: one tap, one order.
- 02KitchenThe ticket lands on the kitchen screen. Made, served; nobody shouts.
- 03SettleCash counted, change exact; discounts and on-account are first-class.
- 04ReceiptBilingual, right-to-left, stamped PAID. Straight to thermal print.
- 05Table freesSettling closes the tab; the floor board reads the table free again.
- 06Day reconcilesThe daily close: settled totals equal payments, zero open sessions.
02 · thirteen modules, one spine
A modular monolith.
Thirteen modules behind frozen contracts, so any piece swaps without unpicking the others. The money spine was built and verified end-to-end before a single feature module joined it.
L1POS · Orders · Payments
L2Tables · KDS
L3Receipts
L4Catalog · Inventory
L5Customers · Discounts
L6Finances · Settings
03 · empty repo → live
One day to a system taking cash.
Measured between commit timestamps: four hours to a money path verified green on both counter and dine-in, deployed to production by hour five. Not a prototype, a live system.
1 dayempty repo → live on production
Money path verified green · counter + dine-in4h 06m
Deployed to production4h 38m
Kitchen screen + multi-payment + thermal print15h 52m
v2 · settle seams + five breadth modules62h 34m